TCP_MD5SIG_MAXKEYLEN 1259 include/net/tcp.h 	u8			key[TCP_MD5SIG_MAXKEYLEN];
TCP_MD5SIG_MAXKEYLEN  202 include/uapi/linux/tcp.h 	__u8	tcpm_key[TCP_MD5SIG_MAXKEYLEN];		/* key (binary) */